Niagara Falls Windows
Energy-Efficient Window Replacement for Niagara Falls Homes
Windows, Doors, and Siding professionally installed by Great Northern Home Exteriors — trusted in Niagara since 2009 and proudly serving areas like Chippawa, Lundy’s Lane, Stamford, and north-end neighbourhoods.
- Trusted in Niagara since 2009
- Professional installation team
- Clean work, respectful service
Why homeowners choose Great Northern Home Exteriors
Keep your home comfortable year-round with Canadian-made KV Custom Windows.
Casement, slider, picture, bay, bow and custom designs to elevate curb appeal.
From complete upgrades to efficient retrofits, we recommend the right solution.
25+ year product warranties plus our 5-year workmanship guarantee.
Over 15 years serving Niagara Falls and surrounding neighbourhoods.
We protect your home and leave the site clean — respecting your space from start to finish.




Windows That Save Energy and Boost Curb Appeal
Outdated windows don’t just hurt your home’s appearance — they can also drive up your energy bills and reduce comfort. Since 2009, Great Northern Home Exteriors has been the trusted choice for local homeowners who want windows that look great and perform even better.
- Bow and bay windows to open up space and natural light
- Full-frame installations for maximum efficiency and durability
- Cost-effective retrofit replacements to suit your budget
- Expert capping and trim work for a seamless, polished look
- Transparent pricing with no hidden fees — ever
Whether you live near Fallsview, Chippawa, or Stamford, our local team is committed to delivering window upgrades that enhance comfort, beauty, and efficiency — with craftsmanship you can count on.
Installation Options: Full-Frame vs. Retrofit
At Great Northern Home Exteriors, every installation is completed by trained professionals who specialize in both retrofit and full-frame window replacements. Our process ensures your home gets the right solution for comfort, efficiency, and long-term durability.
Retrofit (Insert) Installation
Your new windows are fitted into the existing frames. This option is cost-effective and less invasive, finished with Cove trim on the interior and durable aluminum capping on the exterior.
Full-Frame (Brick-to-Brick) Installation
The entire window — including casings and jamb extensions — is removed and replaced. This method delivers the highest energy efficiency and can include new vinyl brickmould for a clean, modern finish.
Whichever installation method you choose, our team guarantees precision, attention to detail, and results that last — enhancing both the comfort and appearance of your Niagara Falls home.
Replacement Window Styles and Features

Casement Windows
- Outstanding energy efficiency with multi-chambered frames & Low-E glass
- Smooth crank operation and durable hardware
- Compression seals for a tight, draft-free fit
- Slim frames and customizable colors for modern curb appeal
- Opens wide for safe, easy cleaning indoors

Picture Windows
- Expansive glass for unobstructed views
- Maximum natural light for brighter interiors
- Fixed design for superior efficiency
- Pairs well with casement or slider windows for ventilation
- Custom sizes and shapes available

Sliding Windows
- Effortless glide on reinforced tracks
- Space-saving design — no swinging sashes
- Tilt-in sashes for easy indoor cleaning
- Energy-efficient vinyl frames with Low-E glass
- Slim frames maximize glass area & natural light

Double Hung Windows
- Flexible ventilation using top, bottom, or both sashes
- Tilt-in design for safe, simple indoor cleaning
- Energy-efficient vinyl frames with Low-E glass
- Smooth, dependable hardware built for daily use
- Classic appearance that suits many home styles

Bay and Bow Windows
- Elegant, eye-catching design that elevates curb appeal
- Multiple glass panels welcome abundant natural light
- Creates extra interior space for seating or décor
- Energy-efficient frames with Low-E glass for comfort
- Custom sizes, angles, and finishes to match your home’s character

Awning Windows
- Top-hinged design allows ventilation even during light rain
- Space-saving operation ideal for compact areas
- Pairs well with picture or casement windows
- Multi-chambered vinyl frames with Low-E glass for efficiency
- Well suited for bathrooms and other tight spaces
Which Windows Are Right for You?
No matter which style you choose, KV Custom Windows from Great Northern are built for efficiency, durability, and curb appeal. With expert installation and endless design options, Niagara Falls homeowners can feel confident in their investment.
Ontario Window & Door Rebate Program
Receive up to $100 rebate for each ENERGY STAR® certified window or door (opening), including double- and triple-pane models. Note: Replacing existing ENERGY STAR-certified products does not qualify.
- Replace at least three windows or one door or one sliding door.
- Up to $600 reimbursed after the final audit.
- Homes using Enbridge gas or Ontario electric heat.
- Minimum two energy upgrades required.
- Keep all ENERGY STAR® labels until the final audit.
Planning more exterior upgrades in Niagara Falls? We also provide:
Refresh the entry with a look that complements your new windows.
Unify the exterior with clean, durable siding for curb appeal.
Finish the project with proper drainage and clean roofline edges.
No-Pressure Sales, Just Honest Guidance
At Great Northern Home Exteriors, exceptional service is always our top priority. We believe homeowners across Niagara Falls should feel confident and comfortable when making decisions about their windows — never pressured.
Whether you’re replacing a single window or upgrading your entire home, our team focuses on education, transparency, and options. We’ll walk you through the best solutions for your needs, explain the differences between retrofit and full-frame installations, and provide clear pricing so you can make the decision that’s right for you.
With Great Northern, you’ll always get expert advice without high-pressure tactics — just honest guidance designed to help you choose what’s best for your home and budget.
Ready for a free estimate?
Upgrade your home with windows built for comfort, durability, and curb appeal. Tell us about your project and our Niagara Falls team will provide a clear, on-site quote — no pressure and no hidden fees.
- Local installation team serving Niagara since 2009
- Retrofit or full-frame installation options explained clearly
- Transparent pricing with no surprises
“GNHE explained the process end-to-end and walked us through two installation options to protect our interior. Pricing was competitive, the install was on schedule, and the crew left everything spotless.”
— Terry BarnhartProudly Serving Niagara Falls Neighbourhoods
Great Northern Home Exteriors provides expert window replacement and window installation throughout Niagara Falls. Whether you’re upgrading an older home near the tourist district or completing a full-frame installation in a quiet family subdivision, our team delivers craftsmanship you can rely on.
If you live anywhere in the Niagara Falls area, our in-house installation team is ready to help with modern, energy-efficient windows built for Niagara’s climate.
Niagara Falls Window Replacement FAQ
How much does it cost to replace windows in Niagara Falls?
Do I need a building permit to replace my windows?
What’s the difference between retrofit and full-frame installation?
How long does a window installation take?
Are you a local window company or just a sales office?
Replacement Windows Installed Across Niagara
Great Northern Home Exteriors provides professional window replacement services throughout the Niagara Region. Select your city below to explore local installations, window styles, and service details specific to your area.